Solano County, California, read at county level: 15 ZIP codes and 10 communities inside the Vallejo metro's coverage, with the climate record and service pressures set out below. TempReach USA connects you with an independent local HVAC technician serving the county.
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Start here if you read nothing else: this page covers Solano County, California — 822 square miles, 10 listed communities, a centroid close to the centre of the Vallejo metro. Its climate record, from VACAVILLE NUT TREE AP, CA US, sets a heating pressure on its systems. TempReach USA publishes the homework and routes the call; an independent local HVAC technician serving the county does the work.
Climate on this page is not a national average wearing a county's name. It is the specific record at VACAVILLE NUT TREE AP, CA US: 62.1 degrees as the average temperature, 24.84 inches of precipitation, 87.5 hot days and 20.7 freezing nights in the average year, 2,446 heating degree days against 1,391 cooling degree days. Solano County — 822 square miles, 15 ZIP codes, 10 listed communities — lives inside that record, and its heating and cooling systems are sized, serviced and replaced inside it too.
Heating writes this county's HVAC calendar. With 2,446 heating degree days against 1,391 cooling degree days in the normals recorded at VACAVILLE NUT TREE AP, CA US, the systems across Solano County earn their keep in the cold half of the year: furnaces and heat pumps cycling through 20.7 nights at or below freezing, when a breakdown stops being a comfort problem and becomes a household one. The pressure shows up as midwinter failures on the oldest equipment first, and a maintenance calendar that has to be kept in autumn — because by the time the cold arrives, the county's systems are already on stage.
One more county fact belongs in the record: position. Solano County sits at 38.267226, -121.939594 on the map — the centroid of a county whose communities spread across 822 square miles of California. Position decides which end of the metro's weather arrives first and which of its service patterns a household here meets most; the rest of this page is that position, read through the climate record and the metro's data.
Routing in Solano County is written in five digits. The county's codes begin at 94510 and run to 95688, 15 in total, and between the first and the last sits the county's full spread of ground — 822 square miles from the metro-facing edge to the far side. A technician's week here is a tour of those codes, and the tour is also a tour of the county's building history, because each code's systems were largely fitted when that code's streets were built.
A county with no neighbours on its record is a simpler map: Solano County, 822 square miles of California, sitting close to the centre of the Vallejo metro and carrying the Vallejo metro's coverage at its edge. Nothing about the work simplifies with the map — the county's housing still spans its building decades, its systems still answer the full degree-day record — but the page can keep its whole attention on one county's ground, which is what it does.
A service calendar for Solano County can be written straight from its station record. Spring belongs to the cooling plant: 1,391 cooling degree days are coming, and the systems that will carry them are checked before the first of the 87.5 hot days arrives. Autumn belongs to the heating plant, ahead of 2,446 heating degree days and 20.7 freezing nights. The middle weeks belong to the unglamorous work — filters, drains, duct joints — that both seasons quietly depend on. The record at VACAVILLE NUT TREE AP, CA US does not change much year to year, which is what makes the calendar worth keeping.
Solano County is a county of distinct communities rather than one continuous town: Vallejo, Fairfield, Vacaville and Suisun City are among the 10 places on its record, each with its own building era and its own stock of systems. Position plays its part as well — the county sits close to the centre of the Vallejo metro, so its communities meet the Vallejo metro's weather at slightly different distances from the centre — but it is the place list that a service diary follows, name by name, through the year.
The housing behind Solano County's systems is the Vallejo metro's housing, read at county scale. The largest single share of the metro's homes was built between 1980 and 1999 — 35.8% of the stock — with 45.4% of homes predating 1980 and 18.8% arriving since 2000, around a median build year of 1982. Inside the county those eras divide by community and by street, but the proportions set the diary: a stock weighted to between 1980 and 1999 produces the service patterns of that era's systems, ducts and insulation, in this county as across the metro.
Put the county's coverage facts in one place and they read like this: 822 square miles of land in California, 10 listed communities, 15 ZIP codes, 0 neighbouring counties on the record, and a place inside the Vallejo metro coverage. No single figure describes the county; the set of them does, and it is the set this page is organised around, from the climate record above to the community and ZIP lists below.
City pages carry the metro-wide homework — housing eras, the problem ranking, services in depth. This county sits inside their coverage.
Population 124,637
Population 119,985
Population 102,085
Population 29,205
Population 19,158
Population 10,002
Population 1,966
Population 1,915
Population 1,443
Population 248
TempReach USA is not an HVAC company. We employ no heating or cooling technicians, we run no service trucks, and we do not carry out HVAC work of any kind. This website and its call center exist for one purpose: to connect homeowners with independent local heating and cooling professionals who serve their area. When you call the number on this site, your call is routed to such a professional. From that point, everything about the job belongs to that professional and to you: the assessment, the work itself, the scheduling, what you are charged, and the terms of any agreement you reach. The professional who takes your job is solely responsible for it. The technician who arrives at your home runs their own business; they are not an employee, agent or subcontractor of TempReach USA. Our part is the information on these pages — assembled from Census Bureau housing data and NOAA climate records for each metro — and the routing of your call. We state this plainly on purpose: you should know exactly who you are hiring before anyone picks up a wrench or a gauge.
One call connects you with an independent local heating and cooling professional serving Solano County and the Vallejo metro.
Call center hours: Mon-Fri 7:00 AM-10:00 PM ET | Sat 8:00 AM-10:00 PM ET | Sun 7:00 AM-9:00 PM ET